Police said that in the third module, all the accused acted on the directors of a man named Priyavart, who allegedly contacted Sunny and asked him to kill his business partner.
The Director General of Prisons in Delhi wrote to the Director General of Tamil Nadu Special Force regarding the incident, after which the force on Sunday suspended seven officers and called them back to the state.
According to senior Delhi Police officers, all it took was a college election in 2013 and a subsequent fight over dominance and muscle power with his childhood friend and life-long rival Jitender Mann alias Gogi, for Tillu to change gears.
A notorious criminal who was released on bail last year has become a major headache for the Delhi Police with several investigations into murder cases citing his involvement in these crimes, officials said.